From 365272e360604a94b33dd22a1bf28d5bf1b523e9 Mon Sep 17 00:00:00 2001
From: Nathan Giddings <nathang567@gmail.com>
Date: Thu, 7 Sep 2023 00:54:28 -0500
Subject: [PATCH] Added null pointer check to avltree constructor

---
 src/avltree.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/avltree.c b/src/avltree.c
index 8902d54..a8268e4 100644
--- a/src/avltree.c
+++ b/src/avltree.c
@@ -5,10 +5,13 @@
 struct avltree_t *avl_new(int key, void *value)
 {
     struct avltree_t *new_tree = kmalloc(sizeof(struct avltree_t));
-    new_tree->height = 1;
-    new_tree->left = new_tree->right = NULL;
-    new_tree->key = key;
-    new_tree->value = value;
+    if(new_tree != NULL)
+    {
+        new_tree->height = 1;
+        new_tree->left = new_tree->right = NULL;
+        new_tree->key = key;
+        new_tree->value = value;
+    }
     return new_tree;
 }